src/mesa/drivers/dri/intel/intel_context.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef INTELCONTEXT_INC
  29 #define INTELCONTEXT_INC
  30
  31
  32
  33 #include "main/mtypes.h"
  34 #include "main/mm.h"
  35 #include "texmem.h"
  36 #include "dri_metaops.h"
  37 #include "drm.h"
  38 #include "intel_bufmgr.h"
  39
  40 #include "intel_screen.h"
  41 #include "intel_tex_obj.h"
  42 #include "i915_drm.h"
  43 #include "tnl/t_vertex.h"
  44
  45 #define TAG(x) intel##x
  46 #include "tnl_dd/t_dd_vertex.h"
  47 #undef TAG
  48
  49 #define DV_PF_555  (1<<8)
  50 #define DV_PF_565  (2<<8)
  51 #define DV_PF_8888 (3<<8)
  52 #define DV_PF_4444 (8<<8)
  53 #define DV_PF_1555 (9<<8)
  54
  55 struct intel_region;
  56 struct intel_context;
  57
  58 typedef void (*intel_tri_func) (struct intel_context *, intelVertex *,
  59                                 intelVertex *, intelVertex *);
  60 typedef void (*intel_line_func) (struct intel_context *, intelVertex *,
  61                                  intelVertex *);
  62 typedef void (*intel_point_func) (struct intel_context *, intelVertex *);
  63
  64 /**
  65  * Bits for intel->Fallback field
  66  */
  67 /*@{*/
  68 #define INTEL_FALLBACK_DRAW_BUFFER       0x1
  69 #define INTEL_FALLBACK_READ_BUFFER       0x2
  70 #define INTEL_FALLBACK_DEPTH_BUFFER      0x4
  71 #define INTEL_FALLBACK_STENCIL_BUFFER    0x8
  72 #define INTEL_FALLBACK_USER              0x10
  73 #define INTEL_FALLBACK_RENDERMODE        0x20
  74 #define INTEL_FALLBACK_TEXTURE           0x40
  75 #define INTEL_FALLBACK_DRIVER            0x1000  /**< first for drivers */
  76 /*@}*/
  77
  78 extern void intelFallback(struct intel_context *intel, GLbitfield bit,
  79                           GLboolean mode);
  80 #define FALLBACK( intel, bit, mode ) intelFallback( intel, bit, mode )
  81
  82
  83 #define INTEL_WRITE_PART  0x1
  84 #define INTEL_WRITE_FULL  0x2
  85 #define INTEL_READ        0x4
  86
  87 #define INTEL_MAX_FIXUP 64
  88
  89 struct intel_sync_object {
  90    struct gl_sync_object Base;
  91
  92    /** Batch associated with this sync object */
  93    drm_intel_bo *bo;
  94 };
  95
  96 /**
  97  * intel_context is derived from Mesa's context class: GLcontext.
  98  */
  99 struct intel_context
 100 {
 101    GLcontext ctx;  /**< base class, must be first field */
 102
 103    struct
 104    {
 105       void (*destroy) (struct intel_context * intel);
 106       void (*emit_state) (struct intel_context * intel);
 107       void (*finish_batch) (struct intel_context * intel);
 108       void (*new_batch) (struct intel_context * intel);
 109       void (*emit_invarient_state) (struct intel_context * intel);
 110       void (*note_fence) (struct intel_context *intel, GLuint fence);
 111       void (*update_texture_state) (struct intel_context * intel);
 112
 113       void (*render_start) (struct intel_context * intel);
 114       void (*render_prevalidate) (struct intel_context * intel);
 115       void (*set_draw_region) (struct intel_context * intel,
 116                                struct intel_region * draw_regions[],
 117                                struct intel_region * depth_region,
 118                                GLuint num_regions);
 119
 120       void (*reduced_primitive_state) (struct intel_context * intel,
 121                                        GLenum rprim);
 122
 123       GLboolean (*check_vertex_size) (struct intel_context * intel,
 124                                       GLuint expected);
 125       void (*invalidate_state) (struct intel_context *intel,
 126                                 GLuint new_state);
 127
 128
 129       /* Metaops:
 130        */
 131       void (*install_meta_state) (struct intel_context * intel);
 132       void (*leave_meta_state) (struct intel_context * intel);
 133
 134       void (*meta_draw_region) (struct intel_context * intel,
 135                                 struct intel_region * draw_region,
 136                                 struct intel_region * depth_region);
 137
 138       void (*meta_color_mask) (struct intel_context * intel, GLboolean);
 139
 140       void (*meta_stencil_replace) (struct intel_context * intel,
 141                                     GLuint mask, GLuint clear);
 142
 143       void (*meta_depth_replace) (struct intel_context * intel);
 144
 145       void (*meta_texture_blend_replace) (struct intel_context * intel);
 146
 147       void (*meta_no_stencil_write) (struct intel_context * intel);
 148       void (*meta_no_depth_write) (struct intel_context * intel);
 149       void (*meta_no_texture) (struct intel_context * intel);
 150
 151       void (*meta_import_pixel_state) (struct intel_context * intel);
 152       void (*meta_frame_buffer_texture) (struct intel_context *intel,
 153                                          GLint xoff, GLint yoff);
 154
 155       GLboolean(*meta_tex_rect_source) (struct intel_context * intel,
 156                                         dri_bo * buffer,
 157                                         GLuint offset,
 158                                         GLuint pitch,
 159                                         GLuint height,
 160                                         GLenum format, GLenum type);
 161
 162       void (*assert_not_dirty) (struct intel_context *intel);
 163
 164       void (*debug_batch)(struct intel_context *intel);
 165    } vtbl;
 166
 167    struct dri_metaops meta;
 168
 169    GLbitfield Fallback;  /**< mask of INTEL_FALLBACK_x bits */
 170    GLuint NewGLState;
 171
 172    dri_bufmgr *bufmgr;
 173    unsigned int maxBatchSize;
 174
 175    /**
 176     * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
 177     */
 178    int gen;
 179
 180    struct intel_region *front_region;
 181    struct intel_region *back_region;
 182    struct intel_region *depth_region;
 183
 184    /**
 185     * This value indicates that the kernel memory manager is being used
 186     * instead of the fake client-side memory manager.
 187     */
 188    GLboolean ttm;
 189
 190    struct intel_batchbuffer *batch;
 191    drm_intel_bo *first_post_swapbuffers_batch;
 192    GLboolean no_batch_wrap;
 193
 194    struct
 195    {
 196       GLuint id;
 197       uint32_t primitive;       /**< Current hardware primitive type */
 198       void (*flush) (struct intel_context *);
 199       GLubyte *start_ptr; /**< for i8xx */
 200       dri_bo *vb_bo;
 201       uint8_t *vb;
 202       unsigned int start_offset; /**< Byte offset of primitive sequence */
 203       unsigned int current_offset; /**< Byte offset of next vertex */
 204       unsigned int count;       /**< Number of vertices in current primitive */
 205    } prim;
 206
 207    GLuint stats_wm;
 208    GLboolean locked;
 209    char *prevLockFile;
 210    int prevLockLine;
 211
 212    /* Offsets of fields within the current vertex:
 213     */
 214    GLuint coloroffset;
 215    GLuint specoffset;
 216    GLuint wpos_offset;
 217    GLuint wpos_size;
 218
 219    struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
 220    GLuint vertex_attr_count;
 221
 222    GLfloat polygon_offset_scale;        /* dependent on depth_scale, bpp */
 223
 224    GLboolean hw_stencil;
 225    GLboolean hw_stipple;
 226    GLboolean depth_buffer_is_float;
 227    GLboolean no_rast;
 228    GLboolean always_flush_batch;
 229    GLboolean always_flush_cache;
 230
 231    /* 0 - nonconformant, best performance;
 232     * 1 - fallback to sw for known conformance bugs
 233     * 2 - always fallback to sw
 234     */
 235    GLuint conformance_mode;
 236
 237    /* State for intelvb.c and inteltris.c.
 238     */
 239    GLuint RenderIndex;
 240    GLmatrix ViewportMatrix;
 241    GLenum render_primitive;
 242    GLenum reduced_primitive;
 243    GLuint vertex_size;
 244    GLubyte *verts;              /* points to tnl->clipspace.vertex_buf */
 245
 246    /* Fallback rasterization functions
 247     */
 248    intel_point_func draw_point;
 249    intel_line_func draw_line;
 250    intel_tri_func draw_tri;
 251
 252    /**
 253     * Set to true if a single constant cliprect should be used in the
 254     * batchbuffer.  Otherwise, cliprects must be calculated at batchbuffer
 255     * flush time while the lock is held.
 256     */
 257    GLboolean constant_cliprect;
 258
 259    /**
 260     * In !constant_cliprect mode, set to true if the front cliprects should be
 261     * used instead of back.
 262     */
 263    GLboolean front_cliprects;
 264
 265    /**
 266     * Set if rendering has occured to the drawable's front buffer.
 267     *
 268     * This is used in the DRI2 case to detect that glFlush should also copy
 269     * the contents of the fake front buffer to the real front buffer.
 270     */
 271    GLboolean front_buffer_dirty;
 272
 273    /**
 274     * Track whether front-buffer rendering is currently enabled
 275     *
 276     * A separate flag is used to track this in order to support MRT more
 277     * easily.
 278     */
 279    GLboolean is_front_buffer_rendering;
 280    /**
 281     * Track whether front-buffer is the current read target.
 282     *
 283     * This is closely associated with is_front_buffer_rendering, but may
 284     * be set separately.  The DRI2 fake front buffer must be referenced
 285     * either way.
 286     */
 287    GLboolean is_front_buffer_reading;
 288
 289    GLboolean use_texture_tiling;
 290    GLboolean use_early_z;
 291    drm_clip_rect_t fboRect;     /**< cliprect for FBO rendering */
 292
 293    int perf_boxes;
 294
 295    GLuint do_usleeps;
 296    int do_irqs;
 297    GLuint irqsEmitted;
 298
 299    GLboolean scissor;
 300    drm_clip_rect_t draw_rect;
 301    drm_clip_rect_t scissor_rect;
 302
 303    drm_context_t hHWContext;
 304    drmLock *driHwLock;
 305    int driFd;
 306
 307    __DRIcontextPrivate *driContext;
 308    __DRIdrawablePrivate *driDrawable;
 309    __DRIdrawablePrivate *driReadDrawable;
 310    __DRIscreenPrivate *driScreen;
 311    intelScreenPrivate *intelScreen;
 312    volatile drm_i915_sarea_t *sarea;
 313
 314    GLuint lastStamp;
 315
 316    GLboolean no_hw;
 317
 318    /**
 319     * Configuration cache
 320     */
 321    driOptionCache optionCache;
 322
 323    int64_t swap_ust;
 324    int64_t swap_missed_ust;
 325
 326    GLuint swap_count;
 327    GLuint swap_missed_count;
 328 };
 329
 330 /* These are functions now:
 331  */
 332 void LOCK_HARDWARE( struct intel_context *intel );
 333 void UNLOCK_HARDWARE( struct intel_context *intel );
 334
 335 extern char *__progname;
 336
 337
 338 #define SUBPIXEL_X 0.125
 339 #define SUBPIXEL_Y 0.125
 340
 341 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 342 #define ALIGN(value, alignment)  ((value + alignment - 1) & ~(alignment - 1))
 343 #define IS_POWER_OF_TWO(val) (((val) & (val - 1)) == 0)
 344
 345 static inline uint32_t
 346 U_FIXED(float value, uint32_t frac_bits)
 347 {
 348    value *= (1 << frac_bits);
 349    return value < 0 ? 0 : value;
 350 }
 351
 352 static inline uint32_t
 353 S_FIXED(float value, uint32_t frac_bits)
 354 {
 355    return value * (1 << frac_bits);
 356 }
 357
 358 #define INTEL_FIREVERTICES(intel)               \
 359 do {                                            \
 360    if ((intel)->prim.flush)                     \
 361       (intel)->prim.flush(intel);               \
 362 } while (0)
 363
 364 /* ================================================================
 365  * Color packing:
 366  */
 367
 368 #define INTEL_PACKCOLOR4444(r,g,b,a) \
 369   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
 370
 371 #define INTEL_PACKCOLOR1555(r,g,b,a) \
 372   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
 373     ((a) ? 0x8000 : 0))
 374
 375 #define INTEL_PACKCOLOR565(r,g,b) \
 376   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
 377
 378 #define INTEL_PACKCOLOR8888(r,g,b,a) \
 379   ((a<<24) | (r<<16) | (g<<8) | b)
 380
 381 #define INTEL_PACKCOLOR(format, r,  g,  b, a)           \
 382 (format == DV_PF_555 ? INTEL_PACKCOLOR1555(r,g,b,a) :   \
 383  (format == DV_PF_565 ? INTEL_PACKCOLOR565(r,g,b) :     \
 384   (format == DV_PF_8888 ? INTEL_PACKCOLOR8888(r,g,b,a) :        \
 385    0)))
 386
 387 /* ================================================================
 388  * From linux kernel i386 header files, copes with odd sizes better
 389  * than COPY_DWORDS would:
 390  * XXX Put this in src/mesa/main/imports.h ???
 391  */
 392 #if defined(i386) || defined(__i386__)
 393 static INLINE void * __memcpy(void * to, const void * from, size_t n)
 394 {
 395    int d0, d1, d2;
 396    __asm__ __volatile__(
 397       "rep ; movsl\n\t"
 398       "testb $2,%b4\n\t"
 399       "je 1f\n\t"
 400       "movsw\n"
 401       "1:\ttestb $1,%b4\n\t"
 402       "je 2f\n\t"
 403       "movsb\n"
 404       "2:"
 405       : "=&c" (d0), "=&D" (d1), "=&S" (d2)
 406       :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
 407       : "memory");
 408    return (to);
 409 }
 410 #else
 411 #define __memcpy(a,b,c) memcpy(a,b,c)
 412 #endif
 413
 414
 415 /* ================================================================
 416  * Debugging:
 417  */
 418 extern int INTEL_DEBUG;
 419
 420 #define DEBUG_TEXTURE   0x1
 421 #define DEBUG_STATE     0x2
 422 #define DEBUG_IOCTL     0x4
 423 #define DEBUG_BLIT      0x8
 424 #define DEBUG_MIPTREE   0x10
 425 #define DEBUG_FALLBACKS 0x20
 426 #define DEBUG_VERBOSE   0x40
 427 #define DEBUG_BATCH     0x80
 428 #define DEBUG_PIXEL     0x100
 429 #define DEBUG_BUFMGR    0x200
 430 #define DEBUG_REGION    0x400
 431 #define DEBUG_FBO       0x800
 432 #define DEBUG_LOCK      0x1000
 433 #define DEBUG_SYNC      0x2000
 434 #define DEBUG_PRIMS     0x4000
 435 #define DEBUG_VERTS     0x8000
 436 #define DEBUG_DRI       0x10000
 437 #define DEBUG_DMA       0x20000
 438 #define DEBUG_SANITY    0x40000
 439 #define DEBUG_SLEEP     0x80000
 440 #define DEBUG_STATS     0x100000
 441 #define DEBUG_TILE      0x200000
 442 #define DEBUG_SINGLE_THREAD   0x400000
 443 #define DEBUG_WM        0x800000
 444 #define DEBUG_URB       0x1000000
 445 #define DEBUG_VS        0x2000000
 446
 447 #define DBG(...) do {                                           \
 448         if (INTEL_DEBUG & FILE_DEBUG_FLAG)                      \
 449                 _mesa_printf(__VA_ARGS__);                      \
 450 } while(0)
 451
 452 #define PCI_CHIP_845_G                  0x2562
 453 #define PCI_CHIP_I830_M                 0x3577
 454 #define PCI_CHIP_I855_GM                0x3582
 455 #define PCI_CHIP_I865_G                 0x2572
 456 #define PCI_CHIP_I915_G                 0x2582
 457 #define PCI_CHIP_I915_GM                0x2592
 458 #define PCI_CHIP_I945_G                 0x2772
 459 #define PCI_CHIP_I945_GM                0x27A2
 460 #define PCI_CHIP_I945_GME               0x27AE
 461 #define PCI_CHIP_G33_G                  0x29C2
 462 #define PCI_CHIP_Q35_G                  0x29B2
 463 #define PCI_CHIP_Q33_G                  0x29D2
 464
 465
 466 /* ================================================================
 467  * intel_context.c:
 468  */
 469
 470 extern GLboolean intelInitContext(struct intel_context *intel,
 471                                   const __GLcontextModes * mesaVis,
 472                                   __DRIcontextPrivate * driContextPriv,
 473                                   void *sharedContextPrivate,
 474                                   struct dd_function_table *functions);
 475
 476 extern void intelGetLock(struct intel_context *intel, GLuint flags);
 477
 478 extern void intelFinish(GLcontext * ctx);
 479 extern void intelFlush(GLcontext * ctx);
 480
 481 extern void intelInitDriverFunctions(struct dd_function_table *functions);
 482
 483 void intel_init_syncobj_functions(struct dd_function_table *functions);
 484
 485
 486 /* ================================================================
 487  * intel_state.c:
 488  */
 489 extern void intelInitStateFuncs(struct dd_function_table *functions);
 490
 491 #define COMPAREFUNC_ALWAYS              0
 492 #define COMPAREFUNC_NEVER               0x1
 493 #define COMPAREFUNC_LESS                0x2
 494 #define COMPAREFUNC_EQUAL               0x3
 495 #define COMPAREFUNC_LEQUAL              0x4
 496 #define COMPAREFUNC_GREATER             0x5
 497 #define COMPAREFUNC_NOTEQUAL            0x6
 498 #define COMPAREFUNC_GEQUAL              0x7
 499
 500 #define STENCILOP_KEEP                  0
 501 #define STENCILOP_ZERO                  0x1
 502 #define STENCILOP_REPLACE               0x2
 503 #define STENCILOP_INCRSAT               0x3
 504 #define STENCILOP_DECRSAT               0x4
 505 #define STENCILOP_INCR                  0x5
 506 #define STENCILOP_DECR                  0x6
 507 #define STENCILOP_INVERT                0x7
 508
 509 #define LOGICOP_CLEAR                   0
 510 #define LOGICOP_NOR                     0x1
 511 #define LOGICOP_AND_INV                 0x2
 512 #define LOGICOP_COPY_INV                0x3
 513 #define LOGICOP_AND_RVRSE               0x4
 514 #define LOGICOP_INV                     0x5
 515 #define LOGICOP_XOR                     0x6
 516 #define LOGICOP_NAND                    0x7
 517 #define LOGICOP_AND                     0x8
 518 #define LOGICOP_EQUIV                   0x9
 519 #define LOGICOP_NOOP                    0xa
 520 #define LOGICOP_OR_INV                  0xb
 521 #define LOGICOP_COPY                    0xc
 522 #define LOGICOP_OR_RVRSE                0xd
 523 #define LOGICOP_OR                      0xe
 524 #define LOGICOP_SET                     0xf
 525
 526 #define BLENDFACT_ZERO                  0x01
 527 #define BLENDFACT_ONE                   0x02
 528 #define BLENDFACT_SRC_COLR              0x03
 529 #define BLENDFACT_INV_SRC_COLR          0x04
 530 #define BLENDFACT_SRC_ALPHA             0x05
 531 #define BLENDFACT_INV_SRC_ALPHA         0x06
 532 #define BLENDFACT_DST_ALPHA             0x07
 533 #define BLENDFACT_INV_DST_ALPHA         0x08
 534 #define BLENDFACT_DST_COLR              0x09
 535 #define BLENDFACT_INV_DST_COLR          0x0a
 536 #define BLENDFACT_SRC_ALPHA_SATURATE    0x0b
 537 #define BLENDFACT_CONST_COLOR           0x0c
 538 #define BLENDFACT_INV_CONST_COLOR       0x0d
 539 #define BLENDFACT_CONST_ALPHA           0x0e
 540 #define BLENDFACT_INV_CONST_ALPHA       0x0f
 541 #define BLENDFACT_MASK                  0x0f
 542
 543 enum {
 544    DRI_CONF_BO_REUSE_DISABLED,
 545    DRI_CONF_BO_REUSE_ALL
 546 };
 547
 548 extern int intel_translate_shadow_compare_func(GLenum func);
 549 extern int intel_translate_compare_func(GLenum func);
 550 extern int intel_translate_stencil_op(GLenum op);
 551 extern int intel_translate_blend_factor(GLenum factor);
 552 extern int intel_translate_logic_op(GLenum opcode);
 553
 554 void intel_viewport(GLcontext * ctx, GLint x, GLint y,
 555                     GLsizei width, GLsizei height);
 556
 557 void intel_update_renderbuffers(__DRIcontext *context,
 558                                 __DRIdrawable *drawable);
 559
 560 void i915_set_buf_info_for_region(uint32_t *state, struct intel_region *region,
 561                                   uint32_t buffer_id);
 562
 563 /*======================================================================
 564  * Inline conversion functions.
 565  * These are better-typed than the macros used previously:
 566  */
 567 static INLINE struct intel_context *
 568 intel_context(GLcontext * ctx)
 569 {
 570    return (struct intel_context *) ctx;
 571 }
 572
 573 static INLINE GLboolean
 574 is_power_of_two(uint32_t value)
 575 {
 576    return (value & (value - 1)) == 0;
 577 }
 578
 579 static inline void
 580 intel_bo_map_gtt_preferred(struct intel_context *intel,
 581                            drm_intel_bo *bo,
 582                            GLboolean write)
 583 {
 584    if (intel->intelScreen->kernel_exec_fencing)
 585       drm_intel_gem_bo_map_gtt(bo);
 586    else
 587       drm_intel_bo_map(bo, write);
 588 }
 589
 590 static inline void
 591 intel_bo_unmap_gtt_preferred(struct intel_context *intel,
 592                              drm_intel_bo *bo)
 593 {
 594    if (intel->intelScreen->kernel_exec_fencing)
 595       drm_intel_gem_bo_unmap_gtt(bo);
 596    else
 597       drm_intel_bo_unmap(bo);
 598 }
 599
 600 #endif